SubC Imaging DVRO User Manual page 41

DYNAMIC OVERLAYS
Serial Data
The Serial Overlay allows you to take in RS232 serial data from a GPS, depth sensor, or any other similar source.
1. COM Port
Choose the COM port to listen to. Typically, this is the same as the COM port of the connected camera.
2. Header or Expression To Match
Header: Enter the header/label under which your device transmits the desired information. After selecting the COM
port, check the Communication Preview
Expression: Use this setting to match the incoming data with a regular expression. Regular expressions can match
complex patterns and can be used to provide more customizable data overlays. (SubC can help you find a suitable
regular expression if you provide us with a sample data set and an example of what you want to display)
3. Format
See Output Formatting. For expression matching SubC can provide you with the format to match your data
4. Display Format
With this group of settings, you can further customize how your serial overlay looks and its position on the screen.
See Appearance and Positioning Options for details.
5. To Front/To Back
Send the overlay to the front or back of the back-to-front-ordering. Overlays closer to the front of the order cover
up those closer to the back of the order. For example, you can use this positioning to easily place dynamic text on
top of a custom graphical background.
6. Reset
Clears all settings preset in the current overlay.
panel to identify your header from the stream.
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